Spintronics

The remarkable trend in electronics described by the Moore law is today experiencing increasing difficulties due to fundamental limitations in the current miniaturization approach. Alternative strategies need to be developed, e.g. exploiting a bottom-up molecular approach, mesoscopic devices, additional degrees of freedom or quantum physics. In this frame, spin is likely going to play a crucial role to carry classical or quantum information. Spintronics research in Lecce addresses different fields, from nanoscale devices based on magnetic molecules or nanoparticles to magnetic multilayers and more recent activities on RF systems for hybrid spintronics. Furthermore, we also investigate novel materials (such as multiferroics and functional oxides) and perform magnetic and ferroelectric characterizations. More in detail:

NanoElectronics/Spintronics

This research was the starting point for the group, thanks to the EU project SpiDME. To interconnect the individual building blocks at the nanoscale, we employ electron beam lithography (EBL), focused ion beam or a non- conventional method based on the selective wet-etching and oxidation of an AlGaAs/GaAs quantum well structure for the simultaneous fabrication of large arrays of nanodevices. Molecules or nanoparticles are typically positioned by specific immobilization procedures exploiting suitable functional end-groups. Charge and spin transport studies are carried out within superconducting magnets up to 10.5T and down to 10 mK.

Transport studies in large scale nanojunction arrays with Bisferrocene-nanoparticle hybrids [S. Karmakar et al., Nanoscale 2012, 4, 2311-2316, http://dx.doi.org/10.1039/C2NR11195K].
Transport studies in large scale nanojunction arrays with Bisferrocene-nanoparticle hybrids [S. Karmakar et al., Nanoscale 2012, 4, 2311-2316, http://dx.doi.org/10.1039/C2NR11195K].

Nanomagnetism

Nanomagnetism in magnetic materials and nanoparticles is investigated by vibrating sample magnetometry and a.c. susceptibility. Beyond hysteresis, both zero-field cooled and field cooled curves are typically acquired to evaluate the blocking temperature.

(left) Magnetic hysteresis curves and (right) zero-field cooled and field cooled curves for Fe3O4 nanoparticles.
(left) Magnetic hysteresis curves and (right) zero-field cooled and field cooled curves for Fe3O4 nanoparticles.

Magnetic Multilayers

Multilayer structures are the basis for giant or tunneling magnetoresistance devices. Our research focuses on the integration of further layers including nanoparticles, magnetic molecules, multiferroics or superconducting films. On the technological side, the target is to achieve a large magnetoresistance, which is useful for further applications such as in biosensors.

TMR junctions with nanocrystal superlattice films and their TMR and magnetic response [I. C. Lekshmi et al., ACS Nano 2011, 5, 1731-1738, Doi: 10.1021/nn102301y].
TMR junctions with nanocrystal superlattice films and their TMR and magnetic response [I. C. Lekshmi et al., ACS Nano 2011, 5, 1731-1738, Doi: 10.1021/nn102301y].

RF systems for hybrid spintronics

Recently, we started to investigate 3D microwave cavities and SAW devices for their integration in hybrid spintronic architectures where photons and phonons are coupled to the magnetic degree of freedom.

Multiferroics and Functional Oxides

Here we investigate high-k materials for gate stack technology in logic and memory devices and multiferroic materials for implementing novel operational concepts in spintronics exploting magnetoelectric coupling. Structural, morphological and dielectrical characterizations are typically carried out, while ferroelectric and multiferroic properties are investigated by means of PFM, KPFM, Dielectric and Ferroelectric (PUND) measurements.

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Dielectric investigation of high-k YCTO thin films [A. G. Monteduro et al., J.Mat.Chem.C 2016, 4, 1080-1087, http://dx.doi.org/10.1039/C5TC03189C].
Dielectric investigation of high-k YCTO thin films [A. G. Monteduro et al., J.Mat.Chem.C 2016, 4, 1080-1087, http://dx.doi.org/10.1039/C5TC03189C].

Facilities & Labs

Lab di Caratterizzazione @ Lecce

NanoFab Lab  @ Lecce

People

Giuseppe_MaruccioGiuseppe

Maruccio

Associate Professor

AnnaGrazia_MonteduroAnna Grazia

Monteduro

Associate PostDoc

SilviaRizzatoSilvia

Rizzato

Associate PhD Student

angeloLeoAngelo

Leo

Associate PhD Student

Publications

  1. A. G. Monteduro, Z. Ameer, M. Martino, A. P. Caricato, V. Tasco, I. C. Lekshmi, R. Rinaldi, A. Hazarika, D. Choudhury, D. D. Sarma and G. Maruccio, Dielectric investigation of high-k yttrium copper titanate thin films, Journal of Materials Chemistry C 2016, Vol., p., issn.  2050-7526, Doi: 10.1039/C5TC03189C.
  2. A. G. Monteduro, Z. Ameer, S. Rizzato, M. Martino, A. P. Caricato, V. Tasco, I. C. Lekshmi, A. Hazarika, D. Choudhury, D. D. Sarma and G. Maruccio, Investigation of high- k yttrium copper titanate thin films as alternative gate dielectrics, Journal of Physics D: Applied Physics 2016, Vol.   49, p.  405303, issn.  0022-3727, Doi: 10.1088/0022-3727/49/40/405303
  3. A. Colombelli, M. G. Manera, R. Rella, S. Rizzato, E. Primiceri, A. G. Monteduro and G. Maruccio, Colloidal lithography fabrication of tunable plasmonic nanostructures, IET Conference Publications2015, Vol.   2015, p., issn., Doi: 10.1049/cp.2015.0148.Other Selected Publications
  4. of Advanced Materials 2013, Vol.   5, p.  2015-2020, issn.  1947-2935, Doi:  10.1166/sam.2013.1702.

Patents

Maruccio, E. Primiceri, P. Marzo, V. Arima, R. Krahne, T. Pellegrino, A. Della Torre, F. Calabi, R. Cingolani, R. Rinaldi, Electrical transduction method and device for the detection of biorecognition events in biomolecular interaction processes for genome/proteome analysis, Italian patent number TO2007A000341 (15-5-2007), International Publication number WO 2008/139421 (20-11-2008).

Project

  1. MADIA: Magnetic Diagnostic Assay for neurodegenerative diseases, UE-H2020-ICT, Work programme topic addressed: ICT-03-2016 “SSI – Smart System Integration” (2017-2020).
  2. MEMO: Imaging MEtallorganic MOlecules: Scanning tunneling spectroscopy and many-body theory, MIUR-PRIN Project (2014-2016)
  3. MolArNet: Molecular Architectures for QCA-inspired  Boolean Networks, FP7-ICT-CP, Grant No. 318516, (2012-2016) Partners: Alma Mater Studiorum-Università di Bologna, Université de Strasbourg, Technische Universitaet Dresden, Trinity College Dublin – School Of Physics, Stmicroelectronics Srl.
  4. Molecular nanomagnets on metallic and magnetic surfaces for applications in molecular spintronics MIUR-FIRB Project (2011-2014)
  5. Spintronic devices for mass-scale electronic: MAE-India, High-relevance project for scientific and technological co-operation between Italy and India (2008-2010).
  6. SpiDME: Spintronic Devices for Molecular Electronics, UE-FP6-NEST-STREP Grant Agreement No. 029002, (2006-2010)  Partners:  University of Hamburg – Institute for Applied Physics; University of Nijmegen – Institute for Molecules and Materials; Trinity College Dublin – School of Physics.

Latest News

WELFARE E PARI OPPORTUNITA'

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September 14-22, 2019

 

Science coffee. Tre scienziate si raccontano: Luisa Torsi, Loretta L del Mercato, Eva Degl'Innocenti Bari - Fiera del Levante, 20 settembre 2019 - 17.30

Luisa Torsi, chimica, docente all’Università degli Studi di Bari e alla ABO Akademi University in Finlandia, tra le protagoniste della mostra della Fondazione Bracco . Loretta L del Mercato, biotecnologa - Ricercatrice CNR Nanotec. Esperta nell’uso delle nanotecnologie applicate in campo biomedico. Attualmente la ricerca si concentra sullo sviluppo di modelli cellulari di tumore del pancreas che consentano di testare l'efficacia di diverse terapie anticancro. Coordina il progetto ERC-StG “INTERCELLMED” finanziato dal Consiglio europeo della ricerca (Erc). Eva Degl'Innocenti, Direttrice MARTA di Taranto [/vc_column_text][/vc_column][/vc_row]

ICONS - A Symposium on Colloidal Nanocrystals

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October 10-11, 2019

 

Cnr Nanotec Lecce

 

The symposium focuses on colloidal semiconductor nanocrystals (also known as quantum dots), which are a central topic in materials science and nanotechnology nowadays. The event will bring together renowned scientists in this research field discussing on fundamentals and future directions of this promising class of materials.  The program consists of two half-day sessions with four talks each covering synthesis, characterization, properties, and applications of colloidal semiconductor nanocrystals. The detailed program will be soon available.

The symposium is intended for anyone that is interested on this topic and will be free of charge. Attendees may present their own work in the dedicated poster session. Registration, with an eventual abstract submission for poster presentation, is required (please, send an e-mail to:   carlo.giansante@nanotec.cnr.it). The event is co-organized by Consiglio Nazionale delle Ricerche - Istituto di Nanotecnologia and Istituto Italiano di Tecnologia.

The final program is now available for download: ICoNS_Program[/vc_column_text][/vc_column][/vc_row]

DIAGNOSTICS OF BRAIN DISEASES VIA STEM CELLS

 01 luglio 2019 - ore 14:15

 

Cnr Nanotec Lecce

 

Realizzato nell'ambito delle attività del progetto "TecnoMed Puglia - Tecnopolo per la medicina di precisione", il meeting è dedicato allo studio delle malattie neurodegenerative: dai nuovi biomarcatori alle piu recenti modellizzazioni, per una migliore comprensione dei meccanismi di base e quindi per lo sviluppo di terapie sempre più ritagliate sul singolo paziente.